Application of a jigsaw puzzle flap based on free-style perforator to repair large scalp defects after tumor resection:A case series

Background:Reconstruction of large scalp defects after tumor resection is common and challenging.Free skin grafting or free flap transfer is always performed.However,these techniques can result in poor functional and cosmetic outcomes.Methods:In the Second Affiliated Hospital of Soochow University and the Second Affiliated Hospital of Chengdu Medical College,35 patients underwent jigsaw puzzle flap procedures based on a free-style perforator to repair large scalp defects after tumor resection from May 2013 to November 2022.The key to this procedure was to divide a large defect into several smaller parts that correspond to adjacent free-style perforators around the scalp defect.The free-style perforator flaps were designed in different ways,such as propeller flaps,rotation flaps,and V-Y advancement flaps,which were pedicled with free-style perforators.All of the small flaps were then mobilized to the defect and sutured to each other to create a new,large jigsaw puzzle-like flap to cover the large scalp defect.Finally,all the donor sites were closed directly.Results:Overall,35 patients were treated.The average defect size was 72 cm^(2)(range,25-91 cm^(2)).All flaps had a satisfactory appearance after follow-up periods of 6 months-10 years.Local tumor recurrence occurred in one case.Conclusion:The application of a jigsaw puzzle flap based on a free-style perforator is a suitable option for the reconstruction of large scalp defects after resection,yielding satisfactory functional and cosmetic results.

Resolving the“Matteo Ricci Puzzle”:Top-Level Design of the Grand Canal of China Based on the Ternary Leadership Theory

Guided by the ternary leadership theory from the perspective of social psychology,this paper explores the impacts of authoritarian,benevolent,and moral leadership on the top design of the Grand Canal of China in terms of its water management practice,while providing reference for resolving the“Matteo Ricci Puzzle”.The research findings are threefold:first,authoritarian as it is,the central government of China formulates relevant laws and regulations to provide legal system insurance for the construction of the Grand Canal Cultural Belt,thus providing the blueprint for constructing the“bright cultural belt,green ecological belt and colorful tourism belt of the Grand Canal”.Second,led by the Central Government,sticking to benevolent and moral leadership,China advocates scientific water management concepts and methods,and gives long-term and comprehensive care to the well-being of the people along the banks of the Grand Canal.Finally,the top-level design of the Grand Canal of China is based on the ternary leadership theory rooted in social psychology and has formulated a set of properly-scheduled,reasonably-coordinated,and flexibly-operated management system for the fundamental interests of the people and long-term goals of the country.

Client Puzzle协议在防御资源耗尽型DoS攻击中的应用

文章在研究现有的被动式Client Puzzle协议(CPP)对防御资源耗尽型DoS攻击的基础上,结合分类服务的基本思想,在应用层提出了一个基于主动式CPP协议的HTTP请求分类服务系统模型(CPPWQ)。在对模型的分析和设计基础上,给出了它的一个实现原型,并在局域网条件下对原型系统的性能进行了测试和分析,验证了模型在防御资源耗尽型DoS攻击中的应用效果。

基于AJAX的Client Puzzle协议框架的研究与实现

本文在研究了基于主动式Client Puzzle协议的HTTP请求分类服务系统模型(CPPWQ)的基础上,结合AJAX技术,实现了一个改进的ACPP模型。在对该模型的分析和设计基础上,本文给出了它的一个实现原型,并与原有模型做比较。

用计算机解决8 puzzle problem

本文介绍的是在计算机的发展过程中 ,利用不同的方法对同一个问题的解决。首先是在传统的图灵机模型下通过建立完整的求解模型后再通过程序运算完成问题的求解 ;

Client Puzzle协议综述

该文首先综述了现有的被动式 CPP 协议的理论和在防御资源耗尽型 Dos 攻击中的应用,在此基础上,结合分类服务的基本思想,在应用层提出了一个防御资源耗尽型 DoS 攻击的基于主动式 CPP 协议的 HTTP 请求分类服务系统模型(CPPWQ)。

Facial microcystic adnexal carcinoma-treatment with a “jigsaw puzzle” advancement flap and immediate esthetic reconstruction: A case report

BACKGROUND Microcystic adnexal carcinoma(MAC)is a rare malignant tumor of the skin that is commonly found on the face.It grows slowly and has a low mortality rate.However,for various reasons,including strong histological invasiveness,clinical inexperience and inadequate procedure design,immediate or permanent facial deformity may occur after surgical operations.CASE SUMMARY This article describes a middle-aged female artist who was diagnosed with MAC on the left upper lip.She declined the recommended treatment plan,which included two-stage reconstruction,skin grafting,or surgery that could have resulted in obvious facial dysfunction or esthetic deformity.We accurately designed a personalized procedure involving a“jigsaw puzzle advancement flap”for the patient based on the lesion location and the estimated area of skin loss.The procedure was successful;both pathological R0 resection and immediate and long-term esthetic reconstruction effects were achieved.CONCLUSION This study suggests that when treating facial MAC or other skin malignancies,a surgical team should have sufficient plastic surgery-related knowledge and skills.An optimal surgical plan for an individual is needed to achieve good facial esthetics and functional recovery and shorten the treatment course.

Coverless Image Steganography Based on Jigsaw Puzzle Image Generation

Current image steganography methods are working by assigning an image as a cover file then embed the payload within it by modifying its pixels,creating the stego image.However,the left traces that are caused by these modifications will make steganalysis algorithms easily detect the hidden payload.A coverless data hiding concept is proposed to solve this issue.Coverless does not mean that cover is not required,or the payload can be transmitted without a cover.Instead,the payload is embedded by cover generation or a secret message mapping between the cover file and the payload.In this paper,a new coverless image steganography method has been proposed based on the jigsaw puzzle image generation driven by a secret message.Firstly,the image is divided into equal rows then further divided into equal columns,creating blocks(i.e.,sub-images).Then,according to secret message bits and a proposed mapping function,each block will have tabs/blanks to get the shape of a puzzle piece creating a fully shaped jigsaw puzzle stego-image.After that,the generated jigsaw puzzle image is sent to the receiver.Experimental results and analysis show a good performance in the hiding capacity,security,and robustness compared with existing coverless image steganography methods.

Commentary on“Solving the benign prostatic hyperplasia puzzle”

Benign prostatic hyperplasia(BPH)is a common condition affecting over 50% of men as they reach the 5th decade of their life[1].While over half of these patients have symptoms,it is not clear why some of these men do while others do not.The article Solving the benign prostatic hyperplasia puzzle by Keong Tatt Foo[2],delves into the different conundrums urologists face when trying to treat their patients.

The puzzle of the missing meat: Food away from home and China's meat statistics

From 1985, an increasing gap has emerged between the official statistical measures of meat production and meat consumption in China, which has raised concerns from many researchers using such data. In this paper we report the results of 428 observations（survey of 107 urban and rural households×4 quarters） from 7 provinces conducted in 2010, and compare them with the official statistical data from the National Bureau of Statistics of China（NBSC）. We conclude that the main reason for the discrepancy is due to the underreporting of consumption, which is due mainly to the omission of consumption away from home.

我们的“Puzzle Bubble”

为了丰富校园生活,弘扬校园文化,继承上海财经大学计算机协会“为同学服务”的传统,积极开展当代大学生多彩的课外娱乐活动,计算机协会于5月末6月初举办精彩纷呈的“泡泡龙”游戏大赛。

Ocular hypertension secondary to obesity: cortisol, the missing piece of the pathophysiological puzzle?

Dear Editor,Obesity has nowadays become a global public health challenge due to its rapidly growing prevalence and interconnection with a wide spectrum of comorbidities.

China's Low Export Markups Puzzle: Competition Effect and Selection Effect

Based on China's industrial enterprises-customs matched data, this paper utilizes two-tier stochastic frontier analysis method to estimate and verify the extent to which selection effect and competition effect influence exporting firms' markup. Our findings suggest that the interaction between selection effect and competition effect ultimately causes actual firm markup to be higher than the baseline markup by 7.11%. Exporting firms' actual markup is higher than the baseline markup by different degrees. In terms of the decomposition of selection effect, TFP explains for 28.05% of selection effect, and nonproductivity factors explain for the rest 71.95%. By controlling for the type of firms' export,the export-productivity paradox only exists for processing trade firms, which shows that with increasing trade facilitation, the policy incentives to encourage firms to export are major contributors to the low export markups.

Solving Solar Neutrino Puzzle via LMA MSW Conversion

We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining oscillation parameters. KamLAND gives decisive conclusion on the solution to the solar neutrino puzzle, in particular, the spectral distortion in the 766.3 Ty KamLAND data gives another new improvement in the constraint of solar MSW-LMA solutions. We confirm that at 99. 73% C.L. the high-LMA solution is excluded.

Diagnosing the Cause of Scientific Standstill, Unravelling the Needham Puzzle

There are diverse opinions about how to solve the Needham Puzzle. Such opinions or schools of thought can be roughly classified into three theories of a) geographical conditions, b) empirical trial and error, and c) private property rights. Although each school of thought makes sense, they all fail to fully uncover the main reason why, in modern history, China lagged behind western countries in the development of science and technology. In our opinion, the correct solution is to draw on historical experiences, integrate all schools of thought, proceed with an emphasis on the definition and protection of property rights, boost government investment in basic scientific research, strengthen government service functionality, actively develop NGOs, and open more widely to the outside world, with a view of pushing forward China's scientific and technological innovation and accelerating the pace of China's modernization.

Grace at Arm＇s Length： The Cultural Importance of Utilizing ＂Expositive Puzzle＂ in Independent Film

Many independent films provide a realistic interpretation of everyday events. Passive viewing techniques used by independent scriptwriters and filmmakers require active engagement from the viewer in order to interpret characters and/or events. The following proposes that the ＂expositive puzzle＂ is an example of these techniques. It uses the fim Short Term 12 in order to demonstrate how the ＂expositive puzzle＂ works and to encourage use in real-world interactions in order to avoid interaction based on stereotypes.

RompecPC: A computerized program to create and solve jigsaw puzzles

RompecPC is a computerized program designed to create and assemble jigsaw puzzles. The program automatically records the solver’s responses as the number of pieces positioned correctly, the number of correct and incorrect movements, the number of times that she/he attempts to move a piece to the same place (perseverations), and the latency and place to which each piece is moved or attempted to be moved. These features facilitate the implementation and evaluation of puzzles while also reducing human error. Therefore, RompePC is a useful tool for the neuropsychological assessment of visuospatial skills in both clinical and experimental research.

Second Thoughts about the <i>τ-θ</i>Puzzle

The new parity value of π0 was determined according to the hypothesis of conservation of particle number. The theo-retical pentaquark proton’s parity value was also determined, and it was found that the conservation of parity is account nicely for the τ-θ puzzle.

Thought Experiments, Puzzles, and Paradoxes

I wish to explore the idea that thought experiments are best accounted for as a special case of a narrative that features an interplay between puzzles and paradoxes. Furthermore, I believe the more successfully thought experiments manage to combine puzzles and paradoxes the more insightful and instructive they become. I suggest the latter kind of thought experiments also use the technique of mental variation.

ACROSS CIOSSword puzzle

1 Made of a very precious metal 5 Article 6 Not sweet 7 At any time 9 That is (abbr) 10 Therefore 11 Opening in a wall to let in light and air DOWN 1 Opening in a wall or fence for a passageway 2 Upon above and supported